Strict new cyber-security legislation is not aimed at limiting foreign companies operating in the country, Chinese officials have said.

The law, due to come into effect on 1 June, bans the collection and sale of users' personal information.

Firms will also have to store user data on servers inside China, and people will be given the right to have their information deleted.

International business groups have appealed against its implementation.

'Uncertainties'

In a letter to the Cyberspace Administration of China (CAC) seen by the Reuters news agency, a group representing European business interests warned that it would lead to "great uncertainties and compliance risks".

The European Union Chamber of Commerce in China told the CAC that the law was "fraught with weaknesses" and called for its introduction to be delayed to "allow sufficient discussion".